to males; some rarer patterned morphs provide an increased level of conspicuousness and thus allow these males to evade predators. Thus, when the Yellow morph reaches a frequency higher than normal, the Yellow morph females may shift their preference to these conspicuously patterned males. Until this patterned morph no longer provides an advantage from predators, females will continue to place their preference on these patterned morphs. The mosaic nature of Hawaiian the islands has allowed for the differentiation of adaptive color variations and polymorphisms. At the younger sites, there is less genetic diversity and the older locations have a much higher diversity of haplotypes. Habitat and distribution Habitat T. grallator inhabits wet and mesic environments. Wet environments are defined as having an annual rainfall from 200 to 350 centimeters and mesic environments are defined as having an annual rainfall of 100 to 200 centimeters. These spiders are found in the forests of the Hawaiian Islands. They have been found on the islands of O’ahu, Moloka’i, Maui, and Hawai’i. They prefer to reside on the underside of plant leaves such as the native Broussaisia arguta and Clermontia arborescens and the introduced Hedychium coronarium. H. coronarium is a particularly tactical plant to reside on as its large, slippery leaves allow T. grallator to better evade predation. These spiders have been seen in kipukas, areas that have been surrounded by lava flows. However, they are not found in the lava flows surrounding the area. Geographic distribution T. grallator is endemic to the Hawaiian archipelago. Sparsely distributed populations have been reported from Oahu, Molokai, Maui and the island of Hawaii in rainforests at elevations of . The proportion of color morphs somewhat varies between the islands of Maui and Hawai’i. On Maui, the most common patterned morph is the Red front, which contains a red “U” on the anterior dorsum. The opisothoma color morphs Yellow, Red front, Red blob, and Red ring are found in both male and female T. grallator in Maui. However, in Hawai’i, these morphs are sex-selective with Yellow and Red blob appearing in females only and Red front and Red ring in males only. The Yellow and Red front as well as the Red blob and Red ring are controlled by the same alleles in females and males, respectively. Diet Diet-induced color change T. grallator spiders may change color depending on their diet. This color change may occur because of